Drill-plow.



DRILL PLOW.

APPLICATION FILED MAR. 24, I915.

Patented Sept. 5, 1916.

UNITED STATES PATENT OFFICE.

ANTON MNISZEWSKI, OF PGSEN, GERMANY.

DRILL-PLOW.

Application filed March 24, 1915.

T 0 all whom it may concern Be it known that I, ANTON MNISZEWSKI, asubject of the German Emperor, and a resident of Posen, Germany, haveinvented a new and useful Improvement in Drill-Flows, of which thefollowing is a specification.

The hitherto known drill plows, operated by motor power, have not solvedthe problem of creating a suitable drill plow on account of theirenormous power losses, and this is the cause, that the drill plow, whichshould occupy the first place among the soil treating implements, isnearly completely unknown in agriculture. My novel invention however hassolved this problem and has realized a suitable, economically operatingdrill plow, in which power losses are avoided and in which by a suitabledevice the drill plow accommodates itself to any condition of the soil.

To prove the technical advantages of my novel drill plow as comparedwith the hitherto known drill plows, the following explanation isreferred to.

A modern plow should effect the most advantageous treatment of the soilwith the least loss of power and time. These requirements are compliedwith in my novel drill plow, which utilizes the drilling for thetreatment of the soil, the moclus of operation of the drills beingapplied to the modern rapid drilling operation and not to the antiquatedslow drilling system.

It has been found by practice, that the soil layer, which can be takenup by a drill at each revolution in the advance movement, amounts to acm. at the most; accordingly also the advance movement of the plow ateach drill revolution must not amount to more than 4 cm.

In the known drill plows the drills and traction wheels are driven byone motor; this however is unsuitable, as, if, on the one hand the motorwith for instance 1200 revolutions per minute is directly coupled withthe drills, on the other hand the revolutions of the traction wheels, ifthe latter for instance have a diameter of 80 cm., must be reduced from1200 revolutions to 20 revolutions per minute, in order to advance theplow at each drill revolution for 4 cm. However such an abnormalreduction of the velocity of a motor is equal to the complete annulmentof the efiiciency of said motor; besides, the drill plow could not moveat all Specification of Letters Patent.

Patented Sept. 5, 1916.

Serial No. 16,779.

from its position with these power losses, resulting from the reductionof revolutions.

In the subject matter of the application however the advantages of themodern rapid drilling system are obtained by the provision of twosuitable special motors with numbers of revolutions corresponding to thework to be performed by said motors, i. c. of a high speed motor of forinstance 1200 revolutions per minute for operating the drills, and of aslow speed special motor of for instance revolutions per minute fordriving the traction wheels. By this provision of two suitable motorsnot only the practical use of an opportunely operating drill plow isrealized, but also an enormous gain of power, as compared with thehitherto known drill plows operated by one motor, is obtained.

In the accompanying drawing: Figure 1 is a side view, partly in sectionof the drill plow according to the present invention. Fig. 2 is a detailview of the mechanism connecting the slow speed motor with the fronttraction wheel.

Upon a truck frame fitted up for a drill plow, two suitable motors aremounted, it is shown by way of example in the drawing. One of the same,a high speed motor, serves for operating the drills 14, while the other,a slow speed motor, serves for driving the traction wheels.

The drill motor is connected with the drills by means of the spur gearwheels 2 and the bevel gear wheels 13, mounted upon the main shaft 1,the last named gear wheels meshing with the bevel gear wheels 15 uponthe drill shafts 14-.

The traction motor is connected with the traction wheels in thefollowing manner: The bevel gear wheel 5, secured upon the shaft 5 ofthe traction motor, meshes with a second bevel gear 4, secured upon aspecial shaft 11. Upon this special shaft 11 a chain wheel 7 is secured,which is connected with the chain wheel 10, mounted upon the axle of thetraction wheels, by means of an intermediate chain wheel 12 and chains8.

Very essential in a drill plow is the correctly applied ratio ofvelocity of the drills to the advance movement of the plow, furthermorethe automatic regulation of said ratio of velocity during the operation,when changes in the condition of the soil are encountered.

As with the provision of two motors, the

drills would run independently of the traction wheels, it is necessary,that both motors be operatively connected in proportion to theirrevolutions by means of a suitable gearing or the like, whereby the twomotors to a certain extent form. one combination-motor, one half ofwhich operates rapidly, while the other half operates slowly. The drillmotor per se is more powerful than the traction motor; in consequencethereof the latter is always dependent of the revolutions of the drillmotor, this condition being very essential for the exact operation ofthe plow.

The operative connection of the two motors effects, on account of itsadaptability, the automatic regulation of the advance movement to theactual velocity of rotation of the drills. As the condition of the soilof a particular field changes continuously and as, on account thereof,the number of revolutions of the drills continuously falls or rises, theadvance movement of the plow must be correspondingly slower or quicker.If it is assumed, that the drill motor or the drills respectively make1200 revolutions per minute, the advance movement of the plow during thesame period of time must amount to 1200 4 cm.:48 m. with 60 revolutionsof the traction motor and 20 revolutions of the traction wheels. If onaccount of diflicultly treatable soil the revolutions of the drills dropto 1100 per minute, the advance movement must be brought in accordancetherewith and must amount to 1100 X4 cnr ta m. with 55 revolutions ofthe traction motor and 185 revolutions of the traction wheels. By thisautomatic adaptability the utmost utilization of the motor power foreach single centimeter of the advance movement is obtained.

Accordingly the essence of the invention is based as well upon theprovision of two motors, conditioned by the high speed of the drills incomparison with the slow speed of the traction wheels, as upon theoperative connection of the two motors. The provision of the two motorsas well as the opera tive connection of the same represents each asolved problem and the cooperation of the two ideas realizes anopportunely and correctly operating drill plow.

The main shaft 1 is connected at one end with the shaft 2" of the drillmotor by means of the spur wheels 2; on the other end of the main shaft1 a screw gear 6 is mounted, which meshes with a screw wheel 3, securedupon a special shaft 11. Upon the same shaft 11 is mounted and rigidlyconnected with the screw wheel 3 a bevel gear wheel 1, which lattermeshes with a second bevel gear wheel 5 mounted upon the shaft of thetraction motor.

By the screw gear 6 and the screw wheel 3 the ratio of 1200 revolutionsof the drill motor to the 60 revolutions of the traction motor, thatmeans of 20 1, is obtained. Accordingly, the two motors are operativelyconnected corresponding to their number of revolutions and must maintaintheir number of revolutions in correct ratio to each other. The tractionwheels are connected to the traction motor by suitable chain wheels inorder to effect the reduction of the revolutions of the traction motorfrom 60 to 20.

l Vhat I claim as new and desire to secure by Letters Patent of theUnited States is:

In a drill plow of the character described, in combination, with theearth working tools and traction wheels thereof, separate source ofpower for said earth working tools and traction wheels respectively, andmeans for interconnecting said sources of power for automaticallyregulating one another speed, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ANTON MNISZEWSKI.

\Vitnesses Gous AKETTY, HANs Smrrn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

